If you cut a extended release pill in half will the effects be stronger then if you do not cut the?

If you cut, split or chew an ER, XL,XR (these all mean extended release) pill/tablet too much medication will be released at once and most likely you will experience more intense side effects and would defeat the purpose of taking this type of pills/tablets.
These pills/tablets are taken so the medication is released gradually maintaining an even amount of the medication through out the day.